Sometimes a bumblebee lands, drinks a bit, and then flies off again like a little helicopter. Not these two though. They both took their time, going around the flower systematically in a circle, drinking as much as they can. And just when I was taking the pictures, one of them decided to take off.
© Charly, all rights reserved. Click for full size.
© Charly, all rights reserved. Click for full size.
© Charly, all rights reserved. Click for full size.
That last photo looks like the bee is doing a happy dance.